Acetal (Flexible PMMA)

What is Acetal?

Acetal (polyoxymethylene) is a 99.9% pure, highly crystalline millable thermoplastic. This copolymer is flexible when thin but becomes more rigid as it thickens — making it ideal for fabricating a variety of tooth-retained removable appliances. Think of Acetal as a much-improved PMMA: stronger, more flexible, and virtually stain- and odor-resistant.

Key Advantages

Clinical Background

Acetal has been used successfully in dentistry worldwide for decades in injectable form. Now available in millable disc form, it brings the predictability of a digital workflow to removable appliance fabrication — delivering esthetic, excellent-fitting, and durable results at great value for both clinicians and patients.